[PATCH v2 0/2] eventpoll: Fix epoll_wait() report false negative
From: Nam Cao
Date: Sat May 30 2026 - 05:39:16 EST
Hi,
While staring at epoll, I noticed ep_events_available() looks wrong. I
wrote a small program to confirm, and yes it is definitely wrong.
This series adds a reproducer to kselftest, and fix the bug.
v2: Switch to seqlock solution
Nam Cao (2):
selftests/eventpoll: Add test for multiple waiters
eventpoll: Fix epoll_wait() report false negative
fs/eventpoll.c | 20 ++++++++-
.../filesystems/epoll/epoll_wakeup_test.c | 45 +++++++++++++++++++
2 files changed, 64 insertions(+), 1 deletion(-)
--
2.47.3